rockers?

[brad22486]

for the trex cam it says not to use 1.8 lifters what lifters should i use the 1.7 1.75 or 1.85.or anything else i dont know about

[nhraformula]

stock rockers are more than enough.

[mrr23]

if you are wanting to use aftermarket rockers with a t-rex, you should stay with a 1.7 rocker. if you want to use a higher ratio, then you will need to check your piston to valve clearance and make sure the springs can handle the added lift.

TR says that due to the fast ramp rates, that you should not use 1.8 rockers. no real explanation why.

[vettenuts]

I actually thought the TRex was marginal to start with for PTV clearance, stick with the stockers unless you want to flycut.

[brad22486]

whats fly cut?

[mrr23]

whats fly cut?

cut notches into the pistons to add clearance for the valves.

[brad22486]

thanks